Mandevilla plant named ‘Sunpa 2671’

ABSTRACT

A new and distinct cultivar of  Mandevilla  plant named ‘Sunpa 2671’, characterized by its climbing plant habit; vigorous growth habit; freely branching habit; early and freely flowering habit; long flowering period; and medium-sized yellow-colored flowers with yellow orange-colored throats.

Botanical designation: Mandevilla hybrida.

Cultivar denomination: ‘SUNPA 2671’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Mandevilla plant, botanically known as Mandevilla hybrida and hereinafter referred to by the name ‘Sunpa 2671’.

The new Mandevilla plant is a product of a planned breeding program conducted by the Inventors in Higashiomi, Shiga, Japan. The objective of the breeding program is to create new freely branching Mandevilla plants with freely flowering habit and attractive flowers.

The new Mandevilla plant originated from a cross-pollination in Higashiomi, Shiga, Japan in May, 2013 of a proprietary selection of Mandevilla hybrida identified as code number 09M111-1, not patented, as the female, or seed parent with a proprietary selection of Mandevilla hybrida identified as code number 09M111-1self-1, not patented, as the male, or pollen, parent. The new Mandevilla plant was discovered and selected by the Inventor as a single flowering plant from within the progeny of the stated cross-pollination in a controlled greenhouse environment in Higashiomi, Shiga, Japan in September, 2014.

Asexual reproduction of the new Mandevilla plant by terminal vegetative cuttings in Higashiomi, Shiga, Japan since March, 2015 has shown that the unique features of this new Mandevilla plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Mandevilla have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity without, however, any variance in genotype.

The following traits have been repcatedly observed and are determined to be the unique characteristics of ‘Sunpa 2671’. These characteristics in combination distinguish ‘Sunpa 2671’ as a new and distinct Mandevilla plant:

-   -   1. Climbing plant habit.     -   2. Vigorous growth habit.     -   3. Freely branching habit.     -   4. Early and freely flowering habit.     -   5. Long flowering period.     -   6. Medium-sized yellow-colored flowers with yellow         orange-colored throats.

Plants of the new Mandevilla can be compared to plants of the female parent selection. Plants of the new Mandevilla differ primarily from plants of the female parent selection in flower color as plants of the new Mandevilla have yellow-colored flowers with yellow orange-colored throats whereas plants of the female parent selection have pale yellowish pink-colored flowers.

Plants of the new Mandevilla can be compared to plants of the male parent selection. Plants of the new Mandevilla differ primarily from plants of the male parent selection in flower color as plants of the new Mandevilla have yellow-colored flowers with yellow orange-colored throats whereas plants of the male parent selection have soft pink-colored flowers.

Plants of the new Mandevilla can be compared to plants of the Mandevilla hybrida ‘Sunpapri’, disclosed in U.S. Plant Pat. No. 28,277. In side-by-side comparisons, plants of the new Mandevilla differ from plants of ‘Sunpapri’ in the following characteristics:

-   -   1. Plants of the new Mandevilla have shorter internodes than         plants of ‘Sunpapri’.     -   2. Plants of the new Mandevilla have smaller leaves with shorter         petioles than plants of ‘Sunpapri’.     -   3. Plants of the new Mandevilla have smaller flowers than plants         of ‘Sunpapri’.     -   4. Plants of the new Mandevilla and ‘Sunpapri’ differ in flower         color as plants of the new Mandevilla have yellow-colored         flowers with yellow orange-colored throats whereas plants of         ‘Sunpapri’ have light to pale orange-colored flowers with         orange-colored throats.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Mandevilla plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the actual colors of the new Mandevilla plant.

The photograph on the first sheet comprises a side perspective view of a typical flowering plant of ‘Sunpa 2671’ grown in a container.

The photograph on the second sheet is a close-up view of typical flowers and flower buds of ‘Sunpa 2671’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations, measurements and values describe plants grown during the summer in 15-cm containers in an outdoor nursery in Higashiomi, Shiga, Japan and under cultural practices typical of commercial Mandevilla production. During the production of the plants, day temperatures averaged 25° C. and night temperatures averaged 15° C. Plants were six months old when the photographs and detailed description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2015 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Mandevilla hybrida ‘Sunpa 2671’. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of Mandevilla             hybrida identified as code number 09M111-1, not patented.         -   Male, or pollen, parent.—Proprietary selection of Mandevilla             hybrida identified as code number 09M111-1self-1, not             patented. -   Propagation:     -   -   Type.—By terminal vegetative cuttings.         -   Time to initiate roots, summer and winter.—About two weeks             at temperatures about 23° C. to 25° C.         -   Time to produce a rooted young plant, summer and             winter.—About five to six weeks at temperatures about 23° C.             to 25° C.         -   Root description.—Fibrous; typically light brown in color,             actual color of the roots is dependent on substrate             composition, water quality, fertilizer type and formulation,             substrate temperature and physiological age of roots.         -   Rooting habit.—Freely branching; medium density. -   Plant description:     -   -   Plant and growth habit.—Climbing plant habit; vigorous             growth habit; freely branching habit.         -   Lateral branch description.—Length: About 39 cm. Diameter:             About 2.8 mm. Internode length: About 3.5 cm. Strength:             Strong, flexible. Texture: Smooth, glabrous. Color,             developing: Close to 144B. Color, fully developed: Close to             177D. -   Leaf description:     -   -   Arrangement.—Opposite, simple.         -   Length.—About 7.4 cm.         -   Width.—About 2.9 cm.         -   Shape.—Oblong.         -   Apex.—Acute.         -   Base.—Obtuse.         -   Margin.—Entire.         -   Texture and luster, upper and lower surfaces.—Smooth,             glabrous; glossy.         -   Venation pattern.—Pinnate, reticulate.         -   Color.—Developing leaves, upper surface: Close to 137C.             Developing leaves, lower surface: Close to 144A. Fully             expanded leaves, upper surface: Close to N137C; venation,             close to 144C. Fully expanded leaves, lower surface: Close             to 147B; venation, close to 144D.         -   Petioles.—Length: About 1 cm. Diameter: About 1.9 mm.             Texture, upper and lower surfaces: Smooth, glabrous. Color,             upper and lower surfaces: Close to 144C. -   Flower description:     -   -   Flower type and habit.—Single salverform flowers arranged in             axillary racemes; flowers face upright to outwardly; freely             flowering habit with about four to seven flowers per             inflorescence and about 42 flowers developing per plant.         -   Natural flowering season.—Early flowering habit, plants             begin flowering about six weeks after planting; long             flowering period, plants flower continuously from early             summer until late autumn in Japan.         -   Flower longevity on the plant.—About seven to ten days;             flowers not persistent.         -   Fragrance.—None detected.         -   Flower buds.—Height: About 5.4 cm. Diameter: About 1.2 mm.             Shape: Rhombic. Color: Distally, close to 12C; proximally,             close to N144B.         -   Flowers.—Appearance: Salverform; flared trumpet, corolla             fused and five-parted; flowers roughly star-shaped.             Diameter: About 8.2 cm. Depth (length): About 5.4 cm. Throat             diameter: About 1.4 cm. Tube length: About 1.4 cm. Tube             diameter, proximally:. About 2.8 mm.         -   Corolla.—Quantity and arrangement: Five petals arranged in a             single whorl and fused towards the base into an elongated             tube; petal lobes imbricate. Petal lobe length: About             3.5 cm. Petal lobe width: About 3.2 cm. Petal lobe shape:             Ovate, asymmetrical. Petal lobe apex: Acute. Petal lobe             margin: Entire; slightly undulate; slightly recurved. Petal             lobe texture and luster, upper and lower surfaces: Smooth,             glabrous; velvety; matte. Throat texture: Smooth, glabrous.             Tube texture: Smooth, glabrous. Color: Petal lobe, when             opening, upper surface: Close to 8C; at the apex, close to             13C. Petal lobe, when opening, lower surface: Close to 8C.             Petal lobe, fully opened, upper surface: Close to 10C;             venation, close to 13B; color does not fade with             development. Petal lobe, fully opened, lower surface: Close             to 10C; venation, close to 10C; color does not fade with             development. Throat: Close to 23A; distally, close to 15B;             proximally, close to 21A; venation, similar to throat             colors. Tube: Close to 154C and 35B; proximally, close to             150C; venation, similar to tube colors.         -   Calyx.—Quantity and arrangement: Five sepals arranged in a             single whorl, fused at the base; calyx, star-shaped. Sepal             length: About 3.4 mm. Sepal width: About 1.9 mm. Sepal             shape: Lanceolate. Sepal apex: Acuminate. Sepal margin:             Entire. Sepal texture, upper and lower surfaces: Smooth,             glabrous. Sepal color, upper surface: Distally, close to             145D tinged with close to 35C; proximally, close to 145B.             Sepal color, lower surface: Distally, close to 145C tinged             with close to 34D; proximally, close to 145A.         -   Peduncles.—Length: About 4.7 cm. Diameter: About 2.4 mm.             Texture: Smooth, glabrous. Aspect: Upright to outwardly.             Color: Close to 144A.         -   Pedicels.—Length: About 1.5 cm. Diameter: About 1.7 mm.             Texture: Smooth, glabrous. Aspect: Upright to outwardly.             Color: Close to 145B.         -   Reproductive organs.—Stamens: Quantity and arrangement:             Typically five; filaments fused to corolla; anthers,             connivent. Anther size: About 1.5 mm by 6.5 mm. Anther             shape: Lanceolate. Anther color: Close to 13C. Pollen             amount: Moderate. Pollen color: Close to 155A. Pistils:             Quantity: Typically one. Pistil length: About 1.3 cm. Style             color: Close to 145D. Stigma shape: Globose. Stigma color:             Close to 145B. Ovary color: Close to N144A.         -   Seeds and fruits.—To date, seed and fruit production have             not been observed on plants of the new Mandevilla. -   Pathogen & pest resistance: To date, plants of the new Mandevilla     have not been noted to be resistant to pathogens and pests common to     Mandevilla plants. -   Garden performance: Plants of the new Mandevilla have been observed     to tolerate wind, rain and temperatures ranging from about 4° C. to     about 30° C. 

It is claimed:
 1. A new and distinct Mandevilla plant named ‘Sunpa 2671’ as illustrated and described. 